diff options
Diffstat (limited to 'autoconf')
| -rw-r--r-- | autoconf/ast_gcc_attribute.m4 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/autoconf/ast_gcc_attribute.m4 b/autoconf/ast_gcc_attribute.m4 index c4488454d..806b39019 100644 --- a/autoconf/ast_gcc_attribute.m4 +++ b/autoconf/ast_gcc_attribute.m4 @@ -5,12 +5,12 @@ AC_DEFUN([AST_GCC_ATTRIBUTE], [ AC_MSG_CHECKING(for compiler 'attribute $1' support) saved_CFLAGS="$CFLAGS" -CFLAGS="$CFLAGS -Werror" +CFLAGS="$CFLAGS -Wall -Wno-unused -Werror" if test "x$2" = "x" then AC_COMPILE_IFELSE( - AC_LANG_PROGRAM([void __attribute__(($1)) *test(void *muffin, ...) {}], + AC_LANG_PROGRAM([static void __attribute__(($1)) *test(void *muffin, ...) {return (void *) 0;}], []), AC_MSG_RESULT(yes) AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), @@ -18,7 +18,7 @@ AC_COMPILE_IFELSE( ) else AC_COMPILE_IFELSE( - AC_LANG_PROGRAM([void __attribute__(($2)) *test(void *muffin, ...) {}], + AC_LANG_PROGRAM([static void __attribute__(($2)) *test(void *muffin, ...) {return (void *) 0;}], []), AC_MSG_RESULT(yes) AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), |